disconnected yellow wire from console?
Thread Starter
Racer
Joined: Dec 2009
Posts: 456
Likes: 0
From: Homosassa Fl
disconnected yellow wire from console?
I'm close to putting everything back together after new carpet and shift console install but a disconnected yellow wire has me scratching my head. I traced it back to a large relay under the emergency brake housing. This relay has two plugs in it. The top plug has an orange, yellow and black wires. It's the yellow wire that's disconnected on the other end under the center console. Can anyone tell me where this wire should hook up? I don't recall if it was ever connected.
Also testing all switches before closing it all up. Checked the fan switch and I don't hear fan running. I just don't know if any other heat/AC switches should be in a certain position for it to come on and can't start car because have tank out at the moment. Switch worked fine prior to replacing center console and I don't think it's related to disconnected wire above.
Sorry but I just got the car a couple days before ripping things out and not that familiar with all operations.
Also testing all switches before closing it all up. Checked the fan switch and I don't hear fan running. I just don't know if any other heat/AC switches should be in a certain position for it to come on and can't start car because have tank out at the moment. Switch worked fine prior to replacing center console and I don't think it's related to disconnected wire above.
Sorry but I just got the car a couple days before ripping things out and not that familiar with all operations.
Instructor
Joined: Sep 2010
Posts: 229
Likes: 1
From: Grants Pass Oregon
I'm close to putting everything back together after new carpet and shift console install but a disconnected yellow wire has me scratching my head. I traced it back to a large relay under the emergency brake housing. This relay has two plugs in it. The top plug has an orange, yellow and black wires. It's the yellow wire that's disconnected on the other end under the center console. Can anyone tell me where this wire should hook up? I don't recall if it was ever connected.
Also testing all switches before closing it all up. Checked the fan switch and I don't hear fan running. I just don't know if any other heat/AC switches should be in a certain position for it to come on and can't start car because have tank out at the moment. Switch worked fine prior to replacing center console and I don't think it's related to disconnected wire above.
Sorry but I just got the car a couple days before ripping things out and not that familiar with all operations.
Also testing all switches before closing it all up. Checked the fan switch and I don't hear fan running. I just don't know if any other heat/AC switches should be in a certain position for it to come on and can't start car because have tank out at the moment. Switch worked fine prior to replacing center console and I don't think it's related to disconnected wire above.
Sorry but I just got the car a couple days before ripping things out and not that familiar with all operations.
On my '78, the yellow wire comes from the heater resistor to the switch.
Thread Starter
Racer
Joined: Dec 2009
Posts: 456
Likes: 0
From: Homosassa Fl
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Thread Starter
Racer
Joined: Dec 2009
Posts: 456
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From: Homosassa Fl
Race Director
Joined: May 2006
Posts: 16,528
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From: Dayton, Ohio
That would be the antenna relay then. The yellow wire triggers the relay,but to be honest I'm not sure by looking at the relay schematic if it triggers by sending 12v or by sending a ground signal. Before applying 12v wait for someone to read the schematic,if I can i will send a link to the schematic.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Here is a 78 schematic,its the same as your 79,maybe someone can explain how the yellow ticks the relay. It appears like it sends 12v.
http://www.corvetteforum.net/c3/tune.../index14.shtml
http://www.corvetteforum.net/c3/tune.../index14.shtml
Instructor
Joined: Sep 2010
Posts: 229
Likes: 1
From: Grants Pass Oregon
Thread Starter
Racer
Joined: Dec 2009
Posts: 456
Likes: 0
From: Homosassa Fl
Thanks all for the info. It's been helpful and now I can rest since my radio hasn't worked (it's an off brand) and the stock antenna wasn't connected to it. I'll tackle the radio issue when it's no longer 100+ degrees in the garage.
Now should the fan switch come on without AC/heat being in any particular position? Does motor have to be running for some reason? Tanks out at the moment and waiting on sending unit and battery disconnected and have to hold cable to battery as I hook things up.
Now should the fan switch come on without AC/heat being in any particular position? Does motor have to be running for some reason? Tanks out at the moment and waiting on sending unit and battery disconnected and have to hold cable to battery as I hook things up.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Thanks all for the info. It's been helpful and now I can rest since my radio hasn't worked (it's an off brand) and the stock antenna wasn't connected to it. I'll tackle the radio issue when it's no longer 100+ degrees in the garage.
Now should the fan switch come on without AC/heat being in any particular position? Does motor have to be running for some reason? Tanks out at the moment and waiting on sending unit and battery disconnected and have to hold cable to battery as I hook things up.
Now should the fan switch come on without AC/heat being in any particular position? Does motor have to be running for some reason? Tanks out at the moment and waiting on sending unit and battery disconnected and have to hold cable to battery as I hook things up.
5th Gear
Joined: Jun 2011
Posts: 5
Likes: 0
A heater resistor is used to slow the blower fan motor down. They look like two or three different size coils made from bare solid wire. They are wired to the heater blower switch to lower the speed of the fan. Straight through the fan gets the full wattage it needs to spin fast, lower the wattage to the blower and it spins slower. Cheaper and lighter than running a multi-speed blower motor with multiple windings.
Thread Starter
Racer
Joined: Dec 2009
Posts: 456
Likes: 0
From: Homosassa Fl
A heater resistor is used to slow the blower fan motor down. They look like two or three different size coils made from bare solid wire. They are wired to the heater blower switch to lower the speed of the fan. Straight through the fan gets the full wattage it needs to spin fast, lower the wattage to the blower and it spins slower. Cheaper and lighter than running a multi-speed blower motor with multiple windings.
